Sometimes when the battery of your tab is completely drained and the device cant even responding while on charge you will have to do a little trick to get it back. Connect your touch to your computer with the original cable and press and hold the power (hold) then the home key (hold)for about 20sec or more. and when it first connect to the pc, there should be a connection notice sound, thats how you know there still something there a charging battery symbol will get back on your screen once your device is charged as much needed to open it up it will turn on.
